Frequently it is necessary to convert various reliability
parameters from one set of environmental conditions to a different set of
environmental conditions. Extensive reliability data may have been generated
or gathered in a given environment while the equipment may be subsequently
slated for use in an entirely different environment. In other cases, the
customers may define a reliability parameter differently than the manufacturer
does, or he may use an entirely different figure-of-merit as the basis for
acceptance. The intent of this section is to address these areas of
concern.